Guest environment audit (2026-09-25, DF-4975 / DF-4976 verification boundary)

$ dfbsd-qemu/vm.sh status
up

$ uname -a
DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

$ pciconf -lv | display/vga excerpt
vgapci0@pci0:0:2:0:  class=0x030000 card=0x11001af4 chip=0x1111234 rev=0x02 hdr=0x00
    class      = display
    subclass    = VGA
-> QEMU std VGA; NO AMD GPU, NO Atheros NIC (only virtio + ehci/xhci)

$ kldstat
 1    5 0xffffffff80200000  1ad8538 kernel
 2    1 0xffffffff81cd9000    7c288 ehci.ko
 3    1 0xffffffff81d56000    8c778 xhci.ko

$ ls /dev/dri
ls: /dev/dri: No such file or directory

$ sysctl kern.conftxt | grep -c -E '^(device|options).*(drm|ath)'
0
-> the running guest kernel config contains neither drm/amdgpu nor ath.

Conclusion: mxgpu_ai.c (SR-IOV Vega20 mailbox) and ar5416 HAL interrupt
machinery are unreachable on this guest — no driver instance, no device.
PoC execution is impossible from inside this guest; findings DF-4975/4976
are classified untested (DB poc enum lacks not_testable) with full static
traces in VERDICT.md.